The incidence of osteoarthritis (OA) has been increasing on a global scale. Research is under way to elucidate its causes and pathology; however, no fundamental treatment methods have been established. This roundtable discussion involved leading physicians from the USA, the UK, and Japan, who talked frankly about the current status of and outlook for OA treatment from
their respective viewpoints. Their discussion identified similarities and differences between the countries and proved to be a valuable opportunity for building international consensus on OA treatment.